<template>
  <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-on="$listeners" />
  <svg v-else :class="svgClass" aria-hidden="true" v-on="$listeners">
    <use :xlink:href="iconName" />
  </svg>
</template>

<script>
import { isExternal } from '@/Utils/Validate'

export default {
   name: 'SvgIcon',
   props: {
      iconClass: {
         type: String,
         required: true
      },
      className: {
         type: String,
         default: ''
      }
   },
   computed: {
      isExternal () {
         return isExternal(this.iconClass)
      },
      iconName () {
         return `#icon-${this.iconClass}`
      },
      svgClass () {
         if (this.className) {
            return 'svg-icon ' + this.className
         } else {
            return 'svg-icon'
         }
      },
      styleExternalIcon () {
         return {
            mask: `url(${this.iconClass}) no-repeat 50% 50%`,
            '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`
         }
      }
   }
}
</script>

<style scoped>
.svg-icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

.svg-external-icon {
  background-color: currentColor;
  mask-size: cover!important;
  display: inline-block;
}
</style>
